Hi I have a question that hopefully some of you more technical people can help me with. I recently discovered that across fresh installs of Windows 10, the store remembers under "My Apps", what apps you've "purchased (free apps)" and when. I have never used an online account, only offline local accounts and have never signed into the MS Store app. I had assumed and read that most identifying IDs are generated at first boot. What sticks across installs that MS Store can pick up to assume it's the same computer?